corcoran



(No Model.)

QSheets-Sheet '11. T. J. CORCORAN.

LOOM.

No. 476,918. Patented June 14, 1892,

INVENTOH Wl TNE SSE S TTOHNEY (No Model.) 2 Sheets-Sheet 2.

T. J; GORGORAN. LOOM.

No. 476,918. Patented June 14, 1892.

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UNITED STATES PATENT OEEICE.

THOMAS J. OORCORAN, OF PERU, INDIANA.

LOOM.

SPECIFICATION forming part of Letters Patent No. 476,918, dated June 14, 1892.

Application filed February 27, 1892. Serial No. l22,997. (No model.)

.To all whom, t may concern:

Be it known that I, THOMAS J. OORCORAN, a citizen of the United States, residin gat Peru, in the county of Miami and Stat-e of Indiana, have invented certain new and useful Improvementsin Looms, of which the following is a specification.

My said invention consists in an improved construction and arrangement of mechanism for operating the lever which throws the shuttles of looms, whereby the construction is simpliiied and rendered more positive and perfect in operation, all as will be hereinafter more particularly described and claimed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar letters of reference indicate similar parts, Figure l represents a front elevation of a loom embodying my said invention; Fig. 2, an elevation of the left-hand end thereof; Fig. 3,a detail vertical section, on an enlarged scale, as seen when looking in the direction indicated by the arrows from the dotted line 3 3 in Fig. l, the large gear-wheel adjacent to said dotted line being4 indicated by dotted lines to permit the parts beyond it to be seen more clearly; Fig. 4, a-top or plan View of the portions shown in Fig. 3; Fig. 5, a plan `view of the face of the gear-wheel B', and Fig. 6 a similar view of the gear-wheel O.

In said drawings, the portions marked A represent the frame of the loom; B, the shaft carrying the gear-wheels for operating the shuttle-throwing mechanisms; C, the crankshafts with which the shuttle-throwing levers are connected and by which they are operated, and D a rock-shaft connected with shifting mechanism for throwing the gear-wheels into and out of engagement with each other.

The frame A and all the portions of the loom other than those used to throw the shuttles are or may be of any well-known or desired construction and arrangement, and needs no special description herein.

The shaft B is journaled longitudinally of the frame in suitable bearings, and is driven by a gear-wheel don the power-shaft through a gear-wheel b, which is secured upon one of its ends and meshes therewith. Near each end it carries a gear-wheel B' of the form shown in Figst and 5, the inner face of each of which is dividedinto three surfaces b, b2,

and b3. The outer portion b has a straight .a slot b4 is formed, for a purpose which will be presently described.

The crank-shafts C are journaled in suitable bearings transversely of the frame, one near each end, in proximity to the wheels B', and each has a gear-wheel C upon one end and a crank O2 upon the other. Each of said gear-wheels C is mounted upon its said shaft by means of a spline C, (see Fig. 3,) and has an elongated hub with a circumferential groove, with which a shifting-fork C3 engages. Each is arranged so as to mesh with the geared segment of the adjacent wheel B', being formed with the same number of cogs as said segment contains, which extend nearly around said wheel. Upon one side is formed a flange c' with a straight edge and projecting corners, and on the same side for a short space the cogs are omitted, leaving a smooth beveled surface c2. A pitman-rod OL is journaled at one end to the crank-pin of the crank O2 on the outer end of said shaft O, and upon its other end is provided with a loop c4, of rawhide or other suitable material, which surrounds the shuttlc-throwing lever A', said loop being preferably formed of iiexible material such as described, for the purpose of permitting it to better accommodate itself to the various motions of said lever, while at the same time holding it in a substantially tight embrace.

The rock-shaft D is journaled in suitable bearingslongitudinally of the frame and back of the gear-wheel O', and substantially above i IOO The operation of my said invention is as follows: The several parts being in the position shown in the several figures, which is the position they occupy just after the cogged segment of one of the wheels B has left its engagement with its adjacent wheel C', and the shaft B, carrying said wheels B', being in continuous motion, the straight edge of the flange c of said Wheel C slides around upon the inner edge of the portion b of the inner face of said wheel B, the smooth beveled portion c2 resting upon the beveled portion b2. In this position the Wheel B turns around, holding the Wheel C and the shaft C from turning until the front corner of the flange c reaches the slot Z1* in the wheel B', which is adjacent thereto, which corner, engaging with said slot, starts the Wheel C in motion, the cogs of which then mesh with the cogged segment of the portion b2, giving said wheel C a complete revolution and throwing the shuttlethrowing lever back and forth once. At the other end of the segment the other corner of said flange c drops into the other slot ZJ and turns the straight edge of said flange and the smooth portion c2 into a position where they will rest firmly upon the portion b and the smooth part of the portion b2 of the wheel B and support said wheel C from turning until said wheelB has again revolved to bring the segment around into position to engage with said wheel C', as before. At every revolution of said wheel C', will be readily understood7 the crank C2, through the pitman-rod C4, operates to throw the shuttle-operatinglevel-Aforward and then back again, which throws the shuttle in the usual manner and returns the lever to the position ready for another operation. By this means a positive motion of said lever A is at all times secured and a very simple device provided.

Having thus fully described my said invention, What I claim as new, and desire to secure by Letters Patent, is

1. Mechanism for operating the shuttle throwing lever of looms, which consists of a shaft geared to suitable power, a wheel mou n ted thereon, having a beveled surface in its face provided with a geared segment, a transverse shaft having a gear-wheel with a straight or widened portion upon one side, which gear- Wheel is arranged to mesh with the geared segment of the other wheel and be operated thereby and then be held by said straight side from turning during the rest of the revolution of said other Wheel, a crank on said shaft,

and a pitman-rod running from said shaft to said shuttle-throwing lever, substantially as set forth.

2. In a device for operating the shuttlethrowing levers of a loom, the combination, with the shaft B, geared to suitable power and carrying the wheels B', each of which is formed with a beveled surface b2 in its face, having a geared segment therein, and a slot b4, formed at each end of said segment, of the shafts C, journaled in suitable bearings, one adjacent to each of said wheels B the wheels C, mounted on' said shafts C and each formed with a flange c upon one side, the edge of which is straight, and a beveled smooth portion c2 upon the saine side, said wheels C being arranged to mesh with the segments of said wheels B and. be operated thereby, sul stantially as described, the cranks C2, also mounted on said shafts C, and the pitmanrods C, each connected at one end to the crank-pin of one of said cranks and at the other end to one of the shuttle-throwing levers, substantially as set forth.

3. In a device for operating the shuttlethrowing levers of looms, the combination of the shaft B, geared to suitable power, a wheel B', formed substantially as described, mounted thereon,a shaft C, a wheel C', formed substantially as described and mounted thereon to engage and be operated by said wheel B', a crank C2 on said shaft C, the pitman-rod C4, connected to said crank at one'end and to the shuttle-th rowing lever at the other, the roel@ shaft D with a downwardly-extending linger d, which engages with a suitable seat in the stem of a shifting-fork C3, and said shiftingfork engaging with a circumferential groove in the hub ot' the Wheel C', all substantially as set forth.

In witness whereof I have hereunto set my hand and seal, at Peru, Indiana, this 22d day of February, A. D. 1892.

THOMAS J. CORCORAN. 

